Mr Crossman said many had become unnerved by waking to the smell of smoke this morning, but wanted to reassure those in affected areas that it was due to prevailing winds pushing smoke across from a bushfire at Edenhope in Victoria, near the South Australian border.

Smoke haze had been reported in Adelaide, the Barossa Valley, Adelaide Hills and as far across the state as the Murraylands, Flinders Ranges and Mid North.

"If they do see smoke or see a fire please use the 000 call to respond [alert] emergency services, but the general smoke haze is from fires as far away as Victoria."

Residents with respiratory problems are being advised to stay inside if possible while the haze passes.